Wheel of road-vehicles.



WBLGH. `r BOM) VEHICLES. PlLTlIlQE TELE!) MINES, 1906.,

1,076,12'8, v Patented ot.21 ,1913.

NVENTOR.

CHARLES KINGSTON WELoLnoE' covENTBY, ENGLAND WHEEL 0E ROAD-VEHICLES.

Slieccation of Letters Patent. i

Application nieuwe 9`, 190e. serial No. 320,946.

To all wlw/m15, may conce/rit Be it known that I, CHARLES KINGSTON VELCH, .a subject of the King of Great Britain, residing at Park House, Coventry, in the county of Warwick, England, engineer, have invented certain new and useful Improvements in and Relating to the lVheels of Road-Vehicles, of which the following is a specification.

This invention relates to the wheelsof road vehicles especially wheels of the kind that are used with autolnobiles and other vehiclesl of a heavy character and that are provided with detachable india rubber tires of the solid or pneumatic type. Much difficulty is usually experienced in rigidly attaching tires of this kind to their wheels and alsolin detaching them ywhen it becomes necessary to do so for repairing or renew-- ing the same. If they be of the solid rubber type having a cross sectional shape requiring them to be forced under heavy pressure into a channel shaped rim of which'the mouth or flanges are contracted in some instances, their removal can only be .effected by the employment of mechanicl appliances which the ordinary user doe not possess, thus necessitating the removal of the wheel from Vthe vehicle and its despatch to the manufacturer.

lf the tires be of the solid rubber type furnished with one or more ineXtensible `cores or bands of rigid material embedded in their base and be held in place by detachable annular flanges of the kind now in vogue, difficulties are experienced in attachment in such a manner as to obviate the tendency to slip or creep on the wheels. Wvhen these movements take place the tires either work themselves loose or the material worn away by the friction collects in places between the tires and rims causing them to become so rigidly fixed that it is often necessary to cut them in pieces in order to remove the same. Further, if the tires be of the pneumatic or cushion type held to the rim by inextensible wires or cores or by enlarged edges, the heavy character which the tire mustl necessarily possess, operates to prevent its being easily. manipulated in order to bring the inner edges over the rim in the act of detaching the said tire.

It is the chief object of my invention to enable the wheels toV be so constructed that the above stated difficulties will be either overcome or diminished, so that the tires can be much more conveniently detached from and attached to the wheels than heretoore.

According to this invention it is proposed to construct the rim lof the wheel in two parts or rings which are adapted for -attachment to or detachment from the wheel or the like by screwing so that the necessary holding effect is obtained as regards the tire and a convenient and expeditious means of removing and replacing the tire afforded.

In order that the said invention may be clearly understood and readily carri d into etlect, I will proceed to describe the same with reference to the drawing which represents one example of the various modes of constructing a vehicle wheel adapted to effect the proposed objects.

The drawing shows a transverse section of a portion of a vehicle wheel whereof the rim -1s shown as constructed in two parts,

each being screw threaded 'for application to a similarly screw threaded surface on the wheel.

According to the construction illustrated, it is proposed to make the wheel rimv in the form of a pair of flanged rings a a and to provide their surfaces that lie contiguous to the wheel body with screw. threads, one

thread (that on a) being right handed and the other (that on al left handed. AThe surface I; of the wheel that. carries tlye flanged rings is also provided with rig t and left handed screw threads 'to correspond with those of the flanged rings. The surface b may be formed on a ring or annular support Zw adapted to fit snugly upon the folly c of the wheel, .said ring b and fellv c thus forming a wheel body uponwhich said rim is mounted and carried. Having placed the Aflztnged rings a a' upon the wheel with the tire Z between them and brought the said rings into frictional engagement with the tire, the rings and tire are revolved together; the rings being thereby caused to approach each other and firmly grip the tire, their gripping action taking place without any appreciable angular motion between the tire and the flanged rings; that is to say, the said rings a a will move transversely but not circumferentially relatively to the tire, The resistance which the rubber surface of a tire exerts to the movement of a body relavtively thereto when tightly bearing against it, operates in my arrangement to powerfully resistI theI nnscrewing of the flanged Patented 00h21, 1913.

i desired shape in cross-section.

Lungs so that the tire remains securely held 1n place. In some cases, it may be found desirable, to providey additional means in the form of'bolts, screws, clips, keys, links or other appropriate contrivances for positively locking or restraining the movement of the flanged yrings on the wheel. y

In the drawing is shown a boltl adapted to effect the locking above referred to. The bolt e is formed with a head c', adapted to take a firm bearing against the felly and the rim, the bolt being securely held in position by the nut e2. Upon unscrewing the nut e2 and knocking the bolt a suflicient distance through the wheel, the bolt will be rendered 'free to be turned so as tovrelease the head e from engagement with the portion of the ring against which it normally rests; the

ring portions being thus rendered free to be screwed off the wheel.

I wish it to be understood that the aforesaid flanged rings a a may' be made of any They may be made with their surfaces upon which the inner side of the tire rests, of conical or inclined form asy shown in the drawing, in which case they will tend to force the tire outwardly as said rings approach each other and in that way will more firmly secure the tire to the wheel by exerting radial outward pressure upon inextensible wires, bands or the like embedded in said tire, as for instance in the case of tires, such as illustrated in the drawing. I may also provide forthe insertion of a ring or packing k ofv vegetable fiber, asbestos, rubber, orothersiiitable material for keeping wet, nor moisture. from reaching thelthreads. When the tires employed are of the segmental kind I may make the said flanged rings withy cavities or projections ory the ,like for engaging, with correspondingly formed parts. on l.the rubber segments. Or connecting stems or bolts `ex tending through the rings and the rubber segmentsmay be employed; f

The tires used with my wheel may bel of various types. For instance they may be of theclencher form with or without inextensible wiresbands or the like embeddedin their edges. Or they may be made "with convex or double inclined bases, furnished 1 with inextensible wires or the like near their edges and at the crest of theirr convexity or the apex of their inclinations, in which case they would be very suitable for use with the aforesaid conical or inclined form of thet iiangedl rings. Thus there may be one, two, three of other number ofA such wires. When the reinforcing band or the like is of metal and -lies against thek surface A.of the rings there may be interposed between the two surfaces a fabric or suitable material. The

core, if solid, may be formed of inferior rub- The core may be vulcanized with the ber. tire,. A tire of the pneumatic type may also be employed with my invention.

What I claim and desire to secure by Letters Patent of the United States is 1. A wheel for vehicles, comprising a wheel body having right and left hand threads upon opposite sides of the periphery thereof respectively, and having beveled edges, a ring threaded upon each side of said periphery having a conical outer surface, and the outer edges of the rings having flanges extendingradially in opposite directions, a tire held between the outer conical surfaces and the outwardly extending flanges of said rings, and packing rings between the said inwardly extending flanges and the beveled edges of said wheel body.

2. A wheel for vehicles, comprising a. wheel body having right and -left hand threads upon opposite sides of the periphery thereof respectively, and having beveled edges, a ring threaded upon each side of saidy periphery having a conical `outer surface, and' the outer edges of the rings haying flanges extending radially in opposite directions, a tire held between the outer conical surfaces and the outwardly extending flanges of said rings, packing rings between Athe said inwardly extending flanges and the beveled edges of said wheel body, and a lock'- Aing bolt passing through said wheel body .and engaging against the outer surfaces of the inwardly extending flanges of said ring. In testimony whereof I havehereunto set `my hand in presence of two subscribing witnesses this 25th day of.' May 1906.

CHARLES KINGSTON' WELCH. vYitnesses': ,y

PHILIP EARDLEY VViLKs, GEORGE HENDLEY. 

